We trust our eyes to show what%u2019s really in front of us. But it%u2019s surprisingly easy to trick them. And Patrick Hughes makes a living doing just that. He%u2019s an artist whose paintings are truly mind-bending.

This one is called Paradoxymoron. At first, it looks like a fine painting of a library. It%u2019s good. But it doesn%u2019t look particularly special. Then as you walk by, it changes. You won%u2019t believe your eyes. Hang on until the end to see how it%u2019s done.